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BaoJie BJ-218 25W Mobile Radio VHF UHF 136-174 400-470MHz Ham Radio Car Walkie Talkie Long Range
US$69.99 US$99.99

Q: does it have inbuilt speaker?

Asked by cherian kurian on 2018-08-28 12:32:31

hzsolt99 Yes,the device has a built-in speaker.

2023-08-14 12:33:43 Helpful (0)
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Answers (3)
hzsolt99 04/07/2023
The device basically works fine and is within factory specifications, but there are a few minor bugs: - Above 10 MHz, the frequency cannot be set to the correct 10 MHz local value digit the first time. You have to increase the frequency in 1 MHz steps, starting from a lower frequency. - The counter only detects signals higher than 1.5 V. - The minimum amplitude of the signal generator can not be set below 100 μV. - The output signal amplitude drops rapidly above 10 MHz and no longer keeps its nominal value. A big benefit is that the device can be powered via USB.
FY6900 Dual Channel DDS Function Arbitrary Waveform Signal Generator Pulse Signal Source Frequency Counter Fully Numerical Control 20MHZ/60MHZ
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0
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Comments (1)
hzsolt99 27/06/2023
The antenna has a rugged design and the control knobs are of reliable construction. It is very well tunable in all HAM bands, but according to my measurements the ferrite ring in the VHF and UHF bands has a very high loss, so it can only be used in the HF band with good results. The photo shows the measured settings.
30W QRP Shortwave Antenna HF Antenna 5MHz-55MHz Full-Band Tuned Antenna for FT-817 818 703 K1 K2 USDX MCHF
US$46.99 US$54.99
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hzsolt99 25/01/2021
DC 12V outputs are direct outputs from battery pack so the 12V is not stabilized. This outputs in full charged state are really 12V but as the charge level decreases, this value drops to 10 V! Auto power off function is deactivated by too high load. A minimum load of 10W is required for continuous operation at AC and 12V outputs.
iMars® PS-S70 300W 277wh Portable Power Station Generator Energy Storage Pure Sine Wave Inverter 75000mah 12V 110V 60Hz/220V 50Hz Supply Charger Car Multifunctional Outdoor Emergency
US$369.99 US$443.99
6
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Comments (1)
hzsolt99 20/04/2020
This instrument is works properly. Stock antenna is resonate in 490 MHz. Inside the PCB is almost empty. Only contains two germanium diode, one SMD resistor, and one 47 uF capacitor. This capacitor is unnecessarily large. The indicator deviates slowly. This can be speeded up a bit if you replace the capacitor with 100 nF. The Deprez instrument is to slow and can't come back exactly to zero point. On the top is SMA female(!) connector!
100K-1GHz Broadband Field Strength Instrument Simple Field Strength Meter Talkback Airport Strong Antenna Field Intensity
US$33.99 US$40.99
0
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hzsolt99 28/01/2020
It's a perfect power supply! Don't needs any inner adjusting. Volt and Ampere meters are all within 1% accuracy. This unit operates according to the factory specifications.
Topshak NPS3010W 110V/220V Digital Adjustable DC Power Supply 0-30V 0-10A 300W Regulated Laboratory Switching Power Supply
US$61.99 US$147.99
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Comments (1)
hzsolt99 29/11/2019
This mobile radio works perfectly. Minor problems: - Beep is extreme loud! Must disable... - FM radio also very loud; - Signal strength indicator is inaccurate; - Max. output power: VHF: 21W, UHF:16W
BaoJie BJ-218 25W Mobile Radio VHF UHF 136-174 400-470MHz Ham Radio Car Walkie Talkie Long Range
US$69.99 US$99.99
0
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hzsolt99 09/10/2019
Everything is alright with this analyzer! Very good value for money!
NanoVNA Vector Network Analyzer 50KHz -900MHz Digital LCD Display HF VHF UHF Antenna Analyzer Standing Wave USB POWER
US$56.00 US$75.00
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hzsolt99 18/09/2019
It's an excellent nylon chest for two walkie-talkies!
Chest 3 Pocket Harness Nylon Bag Pack Backpack Holster for Radio Walkie Talkie Two Way Radio
US$15.99 US$23.99
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hzsolt99 18/09/2019
It's an excellent filter set for my GoPro 3+!
37mm UV CPL Filter Lens Adapter Protector Set For GoPro Hero 3 3+
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